Ruling · Ratha Saptamī · 1955

Sunday 30 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 101 minutes.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two dawns

One ghaṭī is 24 minutes. Aruṇodaya is 2 muhūrtas before sunrise.

Dawn of Sunday 30 January

Taken. The only dawn Saptamī reaches.

05:36 aruṇodaya beginssunrise 07:27
05:1205:3606:0006:2406:4807:1207:3608:00

111 of 111 minutes covered

Dawn of Monday 31 January

Saptamī is absent from aruṇodaya. Not taken.

05:36 aruṇodaya beginssunrise 07:27
05:1205:3606:0006:2406:4807:1207:3608:00

0 of 111 minutes covered

Saptamī presentAruṇodaya, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 03:56 on Sun 30 Jan to 02:05 on Mon 31 Jan.

    1955-01-29T19:55:55Z → 1955-01-30T18:04:43Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:36–07:27 on the 30th, 05:36–07:27 on the 31st.

    arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Saptamī must be present during aruṇodaya. It covers 111 of 111 minutes on the 30th and 0 of 111 on the 31st.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one dawn qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 6031 s

  5. 05

    Ruling

    Ratha Saptamī, Baoding, 1955: Sunday 30 January.

    confidence: determinate

Say it like this

In Baoding, Ratha Saptamī 1955 falls on Sunday 30 January. Saptamī runs from 03:56 on Sun 30 Jan to 02:05 on Mon 31 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1955/ratha-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 30 Jan
Ahargaṇa, classicalDisc centre, no refractionSun 30 Jan
compat-drikpanchangComparison profileSun 30 Jan
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/ratha-saptami · ruleset 2026.3-draft

Month
Māgha, amānta
Pakṣa · aṅga
Śukla · Saptamī
Kāla
Aruṇodaya
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 105

“S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha].” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīAruṇodaya 29thCoveredAruṇodaya 30thCoveredRuled
Los Angeles11:56 → 10:0505:040 min05:04108 min30 Jan
Chicago13:56 → 12:0505:140 min05:13113 min30 Jan
Jersey City14:56 → 13:0505:180 min05:17112 min30 Jan
Port of Spain15:56 → 14:0504:510 min04:5199 min30 Jan
London19:56 → 18:0505:440 min05:43120 min30 Jan
Durban21:56 → 20:0503:580 min03:5984 min30 Jan
Dubai23:56 → 22:0505:190 min05:19104 min30 Jan
Delhi01:26 → 23:3505:260 min05:25106 min30 Jan
Kolkata01:26 → 23:3504:340 min04:34103 min30 Jan
Singapore03:26 → 01:3505:100 min05:1196 min30 Jan
Sydney05:56 → 04:0503:520 min03:530 min31 Jan
Suva07:56 → 06:0504:230 min04:230 min31 Jan
Profile · tradition
pac-rp@2026.1 · smarta
Rule
ratha-saptami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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